In reply to Kirankumar V Hiremath:
This question was asked many times. You’ll find many results if you use a search.
Here is a link to one of them
https://verificationacademy.com/forums/systemverilog/checking-clock-period-using-system-verilog-assertion
Use realtime and $realtime instead of time and $time.
Adjust the period as needed.
Ben Cohen
http://www.systemverilog.us/ ben@systemverilog.us
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